LG Electronics 37LC2D(B), 32LC2D(B), 42LC2D(B) service manual Is the input cable, attached?

No image	Is the	YES		NO	Attach the input
	Set ON?		Is the input cable		cable(s)
			attached?
	NO		YES
	Push the POWER
	ON key		Check the			What is			Power Error
			Condition of all	PASS
			Connectors, wafers,			the input signal
			I2C In the			mode?			FAIL
			system.
							Check CVBS	FAIL	Check 3.3V
						AV2	Signal at R105		At L110 on jack
							of jack board		board
							PASS		PASS
- 19									Replace Jack board
-		PASS	Check 24bit	PASS
	Check LVDS					Check Main_V	Check Sub_V
			RGB at AR700-
	Output of Cortez					At R309	At R302
PASS			AR705
Check for S/W error	FAIL		FAIL			FAIL
	Replace Cortez					Check Q303
			Check Power				PASS
			Levels and crystal			Circuit and 9V	Replace CXA2069
						at L300
	PASS
	Replace Hudson					FAIL	Correct the circuit
			FAIL
			Power Error